Represents the accrual for miscellaneous liabilities assumed of Non-cash component.

No definition available.

Name:	mpo_AccrualForMiscellaneousLiabilitiesAssumed
Namespace Prefix:	mpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the cash paid for reorganization items.

+ References

No definition available.

+ Details

Name:	mpo_DebtorReorganizationItemsCashPaid
Namespace Prefix:	mpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Represents the non-cash exchange of common equity and warrants of the reorganized Company for notes.

+ References

No definition available.

+ Details

Name:	mpo_NonCashExchangeOfCommonEquityAndWarrantsOfReorganizedEntityForNotes
Namespace Prefix:	mpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Represents the amount of other non current sold included in non-cash components.

+ References

No definition available.

+ Details

Name:	mpo_OtherNonCurrentsSold
Namespace Prefix:	mpo_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Future cash outflow to pay for purchases of fixed assets that have occurred.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

Name:	us-gaap_CapitalExpendituresIncurredButNotYetPaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585

+ Details

Name:	us-gaap_IncomeTaxesPaid
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of cash paid during the current period for interest that is capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 13
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3213-108585

+ Details

Name:	us-gaap_InterestPaidCapitalized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The amount of cash paid for interest during the period net of cash paid for interest that is capitalized.

+ References

+ Details

Name:	us-gaap_InterestPaidNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The fair value of notes issued in noncash investing and financing activities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586

+ Details

Name:	us-gaap_NotesIssued1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of asset retirement obligations settled through noncash transactions. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset.

+ References

+ Details

Name:	us-gaap_SettlementOfAssetRetirementObligationsThroughNoncashPaymentsAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_SupplementalCashFlowInformationAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_StatementScenarioAxis=us-gaap_PredecessorMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=mpo_PinePrairieFieldAreaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_IncomeStatementBalanceSheetAndAdditionalDisclosuresByDisposalGroupsIncludingDiscontinuedOperationsAxis=mpo_DequincyAssetsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=mpo_SecondLienNotesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=mpo_ThirdLienNotes12PercentDue2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=mpo_SeniorNotesUnsecured10.75PercentDue2020Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=mpo_SeniorNotesUnsecured9.25PercentDue2021Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Supplemental Information to Consolidated Statement of Cash Flows (Details) - USD ($) $ in Thousands	2 Months Ended	10 Months Ended	12 Months Ended
	Dec. 31, 2016	Oct. 20, 2016	Dec. 31, 2015	Dec. 31, 2014
SUPPLEMENTAL INFORMATION:
Non-cash investment in property and equipment	$ 8,135
Cash paid for interest, net of capitalized interest for the Successor Period and the years ended December 31, 2015 and 2014 of $0.7 million, $4.9 million and $12.4 million, respectively (no capitalized interest for the Predecessor Period)	426
Capitalized interest	$ 700
Predecessor
SUPPLEMENTAL INFORMATION:
Non-cash investment in property and equipment		$ 12,995	$ 21,507	$ 95,000
Non-cash exchange of third lien notes for 2020 senior notes and 2021 senior notes			524,121
Cash paid for interest, net of capitalized interest for the Successor Period and the years ended December 31, 2015 and 2014 of $0.7 million, $4.9 million and $12.4 million, respectively (no capitalized interest for the Predecessor Period)		6,709	161,285	129,511
Cash paid for reorganization items		36,325
Cash paid for taxes				209
Capitalized interest		0	4,900	12,400
Predecessor \| Pine Prairie Disposition
SUPPLEMENTAL INFORMATION:
Asset retirement obligation disposed				(7,652)
Accrual for miscellaneous liabilities assumed				(2,185)
Other noncurrent assets sold				$ 371
Predecessor \| Dequincy Divestiture
SUPPLEMENTAL INFORMATION:
Asset retirement obligation disposed			$ (4,699)
Predecessor \| Second Lien Notes
SUPPLEMENTAL INFORMATION:
Non-cash exchange of common equity and warrants of the reorganized Company for notes		591,042
Predecessor \| Third Lien Notes
SUPPLEMENTAL INFORMATION:
Non-cash exchange of common equity and warrants of the reorganized Company for notes		556,136
Predecessor \| 2020 Senior Notes
SUPPLEMENTAL INFORMATION:
Non-cash exchange of common equity and warrants of the reorganized Company for notes		312,039
Predecessor \| 2021 Senior Notes
SUPPLEMENTAL INFORMATION:
Non-cash exchange of common equity and warrants of the reorganized Company for notes		$ 361,050